EP2289131A1 - Sealed electrical connection assembly - Google Patents

Sealed electrical connection assembly

Info

Publication number
EP2289131A1
EP2289131A1 EP09753886A EP09753886A EP2289131A1 EP 2289131 A1 EP2289131 A1 EP 2289131A1 EP 09753886 A EP09753886 A EP 09753886A EP 09753886 A EP09753886 A EP 09753886A EP 2289131 A1 EP2289131 A1 EP 2289131A1
Authority
EP
European Patent Office
Prior art keywords
seal
electrical connection
connection assembly
housing
assembly according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09753886A
Other languages
German (de)
French (fr)
Inventor
David Zieder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nicomatic SA
Original Assignee
Nicomatic SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0802946A external-priority patent/FR2932025A1/en
Application filed by Nicomatic SA filed Critical Nicomatic SA
Publication of EP2289131A1 publication Critical patent/EP2289131A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/777—Coupling parts carrying pins, blades or analogous contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/69—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal deformable terminals, e.g. crimping terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/778—Coupling parts carrying sockets, clips or analogous counter-contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means

Definitions

  • the present invention relates to a sealed electrical connection assembly. More specifically, such an assembly can be used to provide electrical connection in humid environments.
  • Frame contact elements are already known. Thus, there are contact elements comprising a plugging portion surrounded by a frame and a connecting portion for crimping a wire.
  • a frame is a robust part for mechanically protecting the plugging part.
  • These frame contact elements are sold in the form of a strip comprising a separable carrier strip whose one side carries the connecting portions of the contact elements. Since the connecting part of each contact element is crimped on a separate wire, the wires can be brought together or spaced to the desired size after crimping, so that the spacing of the contact elements placed on the carrier strip hardly of importance in this application.
  • WO 88/00762 discloses contact elements whose connecting portion comprises at least one rectangular shaped puncture, having two teeth placed at opposite edges of the puncture in a direction transverse to the connecting portion. These contact elements, which are made in a strip which comprises a carrier strip fixed to the plugging portion. This arrangement is particularly advantageous insofar as it allows the simultaneous connection of several contact elements to the conductors of a flat conductor cable at a pitch of about 2.5 mm. This connection allows the formation of connectors that are now widely used for connections with flat cables or for flexible circuit connection. Such contact elements are very competitive because they make it possible to achieve a safe electrical contact by mechanical operation so as to be able to overcome any welding operation. The present invention aims to expand the use of such contact elements and connectors to environments more hostile in terms of cleanliness and especially moisture.
  • the subject of the invention is an electrical connection assembly comprising: a flexible sheet with parallel electrical tracks,
  • a contact element mechanically fixed by crimping to the ply at the associated electric track thus establishing an electrical contact between the track and its associated contact element
  • a housing having internal walls defining a through passage for the passage of the sheet, characterized in that it comprises a further sliding seal, surrounding the sheet which is disposed downstream of the contact elements and upstream of the case so that when the commitment of this together in an associated conjugate connector having conjugate contact elements, the housing compresses the seal to provide both a compression seal at the web, a seal at the inner walls of the housing and a seal with walls of the conjugate connector.
  • This electrical connection assembly may comprise one or more of the following characteristics, alone or in combination: the gasket has a generally rectangular shape with a central slot for the passage of the sheet, the seal has a generally cylindrical shape with a central slot for the passage of the sheet,
  • the housing comprises, on the side of the gasket, chamfers on either side of the sheet intended to be in contact with the gasket in the assembled state to compress it during the engagement of this together in an associated conjugate connector,
  • the seal is made of silicone
  • the seal has a chamfer in the direction of assembly of the assembly with the conjugate connector intended to cooperate with a conjugate chamfer of the connector
  • the assembly comprises means for fixing the housing to the conjugate connector
  • the fixing means of the housing to the conjugate connector are made in the form of snap-fastening means
  • the fastening means are in the form of tilting arms each having at its free end opposite the conjugate connector a spigot intended to engage in a compliant housing formed in the conjugate connector
  • the fastening means comprise screw fastening means.
  • FIG. 1 is a perspective view of a first embodiment of an electrical connection assembly according to the invention
  • FIG. 2 is a perspective view of a second embodiment of a connection assembly; electrical device according to the invention
  • FIG. 3 is a longitudinal sectional view of the connection assembly of Figure 2 in the assembled state.
  • the same elements bear the same reference numbers.
  • FIG. 1 shows an electrical connection assembly 1 intended to cooperate with a suitable conjugate connector 3.
  • the assembly 1 comprises a flexible sheet 5 with parallel electrical tracks 7.
  • a flexible sheet is understood to mean both the flexible electrical circuits and the flat electrical cables.
  • This sheet 5 has a free end 9 provided with contact elements 11.
  • These contact elements 11 are for example those described in document WO88 / 00762. It is therefore understood that for each track 7, there is provided a contact element 11 which is mechanically fixed by crimping to the sheet 5 at the associated electric track 7 thus establishing an electrical contact between the track 7 and its associated contact element 11.
  • the contact elements 11 are made in the form of female elements so as to be able to cooperate with conjugated contact elements 12, for example pins carried by the connector 3.
  • conjugated contact elements 12 for example pins carried by the connector 3.
  • the assembly 1 comprises a housing 13 having internal walls 15 defining a through-passage 17 for the passage of the web 5.
  • this assembly also comprises a sliding seal 19. It is understood that this seal can slide on the sheet 5 when the assembly 1 is not yet assembled with the connector 3.
  • This seal 19 can be made in one piece as shown in Figure 1 or several pieces placed end to end and having the same shape.
  • the seal 19 is made of a flexible hydrophobic material, for example rubber, but preferably silicone which gives it a good temperature resistance, in particular between -40 C and +120 C.
  • This seal 19 surrounds the tablecloth 5 and is disposed downstream of the contact elements 11 and upstream of the housing 13.
  • upstream and downstream have been chosen as a function of the assembly of the assembly, that is to say to achieve this assembly, first of all, the casing 13 is put on the ply 5, then the joint 19 and finally crimping the contact elements 11.
  • the seal 19 preferably has a generally rectangular shape with a central slot 21 for the passage of the sheet 5.
  • the seal 19 has a chamfer 23 towards assembly of the assembly with the conjugate connector 3 (arrow 25) intended to cooperate with a conical bevel 27 of the connector 3.
  • the housing 13 compresses, in particular by the cooperation of the chamfers 23 of the seal 19 and the chamfer 27 of the connector 3, which has the effect of ensuring both a compression seal at the web 5 (indeed, the seal "crushes” the web 5), a seal at the inner walls 15 of the housing 13 and also a seal with the walls of the conjugate connector 3, in especially the chamfer 27 of it.
  • connection set 1 comprises fixing means 29, preferably snap-fitting of the housing 13 to the conjugate connector 3, for example in the form of rocking arms 31 each having at its free end 33 opposite the conjugate connector 3 a lug 35 intended to engage in a recess 37 formed in the conjugate connector 3. It is also understood that a support on the free end 39 opposite that bearing the pin 35 can easily clear it to disconnect the connection set 1.
  • the fastening means 29 comprise screw fastening means.
  • This embodiment is distinguished from that of FIG. 1 in particular by the shape of the seal 19 which has a generally cylindrical shape with a central slot 21 for the passage of the sheet 5.
  • the housing 13 has on the side of the seal 19 chamfers 41 on either side of the web 5 intended to be in contact with the seal 19 in the assembled state (see Figure 3). to compress it during the engagement of this assembly 1 in the associated conjugate connector 3. It is therefore understood that the chamfers 41 form a kind of funnel receiving the seal 19.
  • conjugate chamfers 43 at the associated conjugate connector 3.
  • fastening means 29 of the assembly 1 to the conjugate connector are also, like those of FIG. Figure 1, snap fastening means.
  • the seal 19 of Figures 2 and 3 is made of the same material, preferably silicone, as the seal of Figure 1.
  • seal 19 makes it possible to make this electrical connection assembly suitable for use in a difficult environment, because for example dusty or humid.
  • the connector 3 can be made as the connection assembly 1 with the only difference being the shape of the outer casing 13, the conjugate contact elements 12 and with a complementary seal having a chamfer 27 like that shown in FIG.
  • the connector 3 can be made as the connection assembly 1 with the only difference being the shape of the outer casing 13, the conjugate contact elements 12 and with a complementary seal having a chamfer 27 like that shown in FIG.
  • the seal is attached to one of the connector housings, for example by pinching in complementary shape or is part (for example by a bi-material injection technique ) of one of these boxes.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The subject of the present invention is an electrical connection assembly (1) comprising: a flexible ribbon cable (5) with parallel electrical tracks (7); for each track (7), a contact element (11) mechanically fastened by crimping to the ribbon cable (5) at the associated electrical track (7) thus establishing an electrical contact between the track (7) and its associated contact element (11); and a casing (13) having internal walls (15) that define a through-passage (17) through which the ribbon cable (5) passes. The assembly further includes a sliding seal (19) surrounding the ribbon cable (5), which seal is placed downstream of the contact elements (11) and upstream of the casing (13) so that, when said assembly (1) has been inserted in an associated conjugate connector (3) having conjugate contact elements (12), the casing (13) compresses the seal (11) so as to provide sealing by compression on the ribbon cable (5), sealing on the internal walls (15) of the casing (13) and sealing with the walls of the conjugate connector (3).

Description

Ensemble de connexion électrique étanchéifié Set of sealed electrical connection
La présente invention est relative à un ensemble de connexion électrique étanchéifié. Plus précisément, un tel ensemble peut être utilisé pour assurer une connexion électrique dans des environnements humides.The present invention relates to a sealed electrical connection assembly. More specifically, such an assembly can be used to provide electrical connection in humid environments.
On connaît déjà des éléments de contact à cadre. Ainsi, il existe des éléments de contact comprenant une partie d'enfichage entourée d'un cadre et une partie de raccordement destinée au sertissage d'un fil électrique. Un cadre est une partie robuste destinée à protéger mécaniquement la partie d'enfichage. Ces éléments de contact à cadre sont vendus sous forme d'une bande comprenant une bande porteuse séparable dont un côté porte les parties de raccordement des éléments de contact. Comme la partie de raccordement de chaque élément de contact est sertie sur un fil séparé, les fils peuvent être rapprochés ou écartés à la dimension voulue après sertissage, si bien que l'espacement des éléments de contact placés sur la bande porteuse n'a guère d'importance dans cette application.Frame contact elements are already known. Thus, there are contact elements comprising a plugging portion surrounded by a frame and a connecting portion for crimping a wire. A frame is a robust part for mechanically protecting the plugging part. These frame contact elements are sold in the form of a strip comprising a separable carrier strip whose one side carries the connecting portions of the contact elements. Since the connecting part of each contact element is crimped on a separate wire, the wires can be brought together or spaced to the desired size after crimping, so that the spacing of the contact elements placed on the carrier strip hardly of importance in this application.
Par ailleurs, le document WO 88/00762 décrit des éléments de contact dont la partie de raccordement comporte au moins un crevé de forme rectangulaire, ayant deux dents placées à des bords opposés du crevé en direction transversale à la partie de raccordement. Ces éléments de contact, qui sont réalisés en bande qui comporte une bande porteuse fixée à la partie d'enfichage. Cette disposition est particulièrement avantageuse dans la mesure où elle permet le raccordement simultané de plusieurs éléments de contact aux conducteurs d'un câble plat à conducteurs au pas de 2,5 mm environ. Ce raccordement permet la formation de connecteurs qui sont maintenant très utilisés pour les connexions avec des câbles plats ou pour la connexion de circuits souples. De tels éléments de contact sont très compétitifs car ils permettent de réaliser par une opération mécanique un contact électrique sûr de façon à pouvoir s'affranchir de toute opération de soudure. La présente invention vise à élargir l'utilisation de tels éléments de contact et de tels connecteurs à des environnements plus hostiles en termes de propreté et notamment d'humidité.Furthermore, WO 88/00762 discloses contact elements whose connecting portion comprises at least one rectangular shaped puncture, having two teeth placed at opposite edges of the puncture in a direction transverse to the connecting portion. These contact elements, which are made in a strip which comprises a carrier strip fixed to the plugging portion. This arrangement is particularly advantageous insofar as it allows the simultaneous connection of several contact elements to the conductors of a flat conductor cable at a pitch of about 2.5 mm. This connection allows the formation of connectors that are now widely used for connections with flat cables or for flexible circuit connection. Such contact elements are very competitive because they make it possible to achieve a safe electrical contact by mechanical operation so as to be able to overcome any welding operation. The present invention aims to expand the use of such contact elements and connectors to environments more hostile in terms of cleanliness and especially moisture.
A cet effet, l'invention a pour objet un ensemble de connexion électrique comportant : - une nappe souple avec des pistes électriques parallèles,For this purpose, the subject of the invention is an electrical connection assembly comprising: a flexible sheet with parallel electrical tracks,
- pour chaque piste un élément de contact fixé mécaniquement par sertissage à la nappe au niveau de la piste électrique associée établissant ainsi un contact électrique entre la piste et son élément de contact associé, et - un boîtier comportant des parois internes définissant un passage traversant pour le passage de la nappe, caractérisé en ce que qu'il comporte une outre un joint d'étanchéité coulissant, entourant la nappe qui est disposé en aval des éléments de contact et en amont du boitier de manière que lors de l'engagement de cet ensemble dans un connecteur conjugué associé présentant des éléments de contact conjugués, le boîtier comprime le joint d'étanchéité pour assurer à la fois une étanchéité par compression au niveau de la nappe, une étanchéité au niveau des parois internes du boîtier et une étanchéité avec des parois du connecteur conjugué.for each track, a contact element mechanically fixed by crimping to the ply at the associated electric track thus establishing an electrical contact between the track and its associated contact element, and a housing having internal walls defining a through passage for the passage of the sheet, characterized in that it comprises a further sliding seal, surrounding the sheet which is disposed downstream of the contact elements and upstream of the case so that when the commitment of this together in an associated conjugate connector having conjugate contact elements, the housing compresses the seal to provide both a compression seal at the web, a seal at the inner walls of the housing and a seal with walls of the conjugate connector.
Cet ensemble de connexion électrique peut comporter une ou plusieurs des caractéristiques suivantes, seules ou en combinaison : - le joint d'étanchéité présente une forme générale rectangulaire avec une fente centrale pour le passage de la nappe, - le joint d'étanchéité présente une forme générale cylindrique avec une fente centrale pour le passage de la nappe,This electrical connection assembly may comprise one or more of the following characteristics, alone or in combination: the gasket has a generally rectangular shape with a central slot for the passage of the sheet, the seal has a generally cylindrical shape with a central slot for the passage of the sheet,
- le boîtier comporte du côté du joint d'étanchéité des chanfreins de part et d'autre de la nappe destinés à être en contact avec le joint d'étanchéité à l'état assemblé pour comprimer celui-ci lors de l'engagement de cet ensemble dans un connecteur conjugué associé,the housing comprises, on the side of the gasket, chamfers on either side of the sheet intended to be in contact with the gasket in the assembled state to compress it during the engagement of this together in an associated conjugate connector,
- le joint d'étanchéité est réalisé en silicone,the seal is made of silicone,
- le joint d'étanchéité présente un chanfrein en direction de l'assemblage de l'ensemble avec le connecteur conjugué destiné à coopérer avec un chanfrein conjugué du connecteur,the seal has a chamfer in the direction of assembly of the assembly with the conjugate connector intended to cooperate with a conjugate chamfer of the connector,
- l'ensemble comprend des moyens de fixation du boîtier au connecteur conjugué,the assembly comprises means for fixing the housing to the conjugate connector,
- les moyens de fixation du boîtier au connecteur conjugué sont réalisés sous forme de moyens de fixation par encliquetage, - les moyens de fixation sont réalisés sous forme de bras basculants présentant chacun à son extrémité libre en vis-à-vis du connecteur conjugué un ergot destiné à s'engager dans un logement conforme ménagé dans le connecteur conjugué,the fixing means of the housing to the conjugate connector are made in the form of snap-fastening means, the fastening means are in the form of tilting arms each having at its free end opposite the conjugate connector a spigot intended to engage in a compliant housing formed in the conjugate connector,
- les moyens de fixation comprennent des moyens de fixation à vis. D'autres caractéristiques et avantages de l'invention ressortiront de la description suivante, donnée à titre d'exemple, sans caractère limitatif, en regard des figures annexées montrant :the fastening means comprise screw fastening means. Other features and advantages of the invention will emerge from the following description, given by way of example, without limitation, with reference to the appended figures showing:
- la figure 1 est une vue en perspective d'un premier mode de réalisation d'un ensemble de connexion électrique selon l'invention, - la figure 2 est une vue en perspective d'un second mode de réalisation d'un ensemble de connexion électrique selon l'invention, etFIG. 1 is a perspective view of a first embodiment of an electrical connection assembly according to the invention; FIG. 2 is a perspective view of a second embodiment of a connection assembly; electrical device according to the invention, and
- la figure 3 est une vue en coupe longitudinale de l'ensemble de connexion de la figure 2 à l'état assemblé. Sur toutes les figures, les mêmes éléments portent les mêmes numéros de référence.- Figure 3 is a longitudinal sectional view of the connection assembly of Figure 2 in the assembled state. In all the figures, the same elements bear the same reference numbers.
La figure 1 montre un ensemble de connexion électrique 1 destiné à coopérer avec un connecteur conjugué adapté 3. L'ensemble 1 comprend une nappe souple 5 avec des pistes électriques parallèles 7. Par nappe souple, on entend aussi bien les circuits électriques souples que des câbles électriques plats.FIG. 1 shows an electrical connection assembly 1 intended to cooperate with a suitable conjugate connector 3. The assembly 1 comprises a flexible sheet 5 with parallel electrical tracks 7. A flexible sheet is understood to mean both the flexible electrical circuits and the flat electrical cables.
Cette nappe 5 présente une extrémité libre 9 munie d'éléments de contact 11. Ces éléments de contacts 11 sont par exemple ceux décrits dans le document WO88/00762. On comprend donc que pour chaque piste 7, il est prévu un élément de contact 11 qui est fixé mécaniquement par sertissage à la nappe 5 au niveau de la piste électrique associée 7 établissant ainsi un contact électrique entre la piste 7 et son élément de contact associé 11.This sheet 5 has a free end 9 provided with contact elements 11. These contact elements 11 are for example those described in document WO88 / 00762. It is therefore understood that for each track 7, there is provided a contact element 11 which is mechanically fixed by crimping to the sheet 5 at the associated electric track 7 thus establishing an electrical contact between the track 7 and its associated contact element 11.
Sur la figure 1, les éléments de contact 11 sont réalisés sous forme d'éléments femelles afin de pouvoir coopérer avec des éléments de contact conjugués 12, par exemple des broches portées par le connecteur 3. Bien entendu, on peut inverser les contacts mâles et femelles sans sortir de l'esprit de la présente invention.In FIG. 1, the contact elements 11 are made in the form of female elements so as to be able to cooperate with conjugated contact elements 12, for example pins carried by the connector 3. Of course, it is possible to invert the male contacts and females without departing from the spirit of the present invention.
De plus, l'ensemble 1 comprend un boîtier 13 comportant des parois internes 15 définissant un passage 17 traversant pour le passage de la nappe 5.In addition, the assembly 1 comprises a housing 13 having internal walls 15 defining a through-passage 17 for the passage of the web 5.
Selon l'invention, cet ensemble comporte une outre un joint d'étanchéité coulissant 19. Il est entendu que ce joint peut coulisser sur la nappe 5 lorsque l'ensemble 1 n'est pas encore assemblé avec le connecteur 3.According to the invention, this assembly also comprises a sliding seal 19. It is understood that this seal can slide on the sheet 5 when the assembly 1 is not yet assembled with the connector 3.
Ce joint 19 peut être réalisé d'une seule pièce comme représenté sur la figure 1 ou de plusieurs pièces mises bout à bout et ayant la même forme. Avantageusement, le joint 19 est réalisé en une matière hydrophobe souple, par exemple en caoutchouc, mais de préférence en silicone ce qui lui confère une bonne tenue en température, en particulier entre -40 C et +120 C. Ce joint 19 entoure la nappe 5 et est disposé en aval des éléments de contact 11 et en amont du boitier 13.This seal 19 can be made in one piece as shown in Figure 1 or several pieces placed end to end and having the same shape. Advantageously, the seal 19 is made of a flexible hydrophobic material, for example rubber, but preferably silicone which gives it a good temperature resistance, in particular between -40 C and +120 C. This seal 19 surrounds the tablecloth 5 and is disposed downstream of the contact elements 11 and upstream of the housing 13.
Les termes « amont » et « aval » ont été choisis en fonction du montage de l'ensemble, c'est-à-dire pour réaliser cet ensemble, on enfile d'abord le boîtier 13 sur la nappe 5, puis le joint 19 et enfin on fixe par sertissage les éléments de contact 11.The terms "upstream" and "downstream" have been chosen as a function of the assembly of the assembly, that is to say to achieve this assembly, first of all, the casing 13 is put on the ply 5, then the joint 19 and finally crimping the contact elements 11.
Le joint d'étanchéité 19 possède préférentiellement une forme générale rectangulaire avec une fente centrale 21 pour le passage de la nappe 5.The seal 19 preferably has a generally rectangular shape with a central slot 21 for the passage of the sheet 5.
De plus, le joint d'étanchéité 19 présente un chanfrein 23 en direction de l'assemblage de l'ensemble avec le connecteur conjugué 3 (flèche 25) destiné à coopérer avec un chanfrein 27 conjugué du connecteur 3.In addition, the seal 19 has a chamfer 23 towards assembly of the assembly with the conjugate connector 3 (arrow 25) intended to cooperate with a conical bevel 27 of the connector 3.
Ainsi, lors de l'engagement de cet ensemble 1 dans le connecteur conjugué associé 3, le boîtier 13 comprime, en particulier par la coopération des chanfreins 23 du joint 19 et du chanfrein 27 du connecteur 3 ce qui a pour effet d'assurer à la fois une étanchéité par compression au niveau de la nappe 5 (en effet, le joint « écrase » la nappe 5), une étanchéité au niveau des parois internes 15 du boîtier 13 et aussi une étanchéité avec des parois du connecteur conjugué 3, en particulier le chanfrein 27 de celui-ci.Thus, during the engagement of this assembly 1 in the associated conjugate connector 3, the housing 13 compresses, in particular by the cooperation of the chamfers 23 of the seal 19 and the chamfer 27 of the connector 3, which has the effect of ensuring both a compression seal at the web 5 (indeed, the seal "crushes" the web 5), a seal at the inner walls 15 of the housing 13 and also a seal with the walls of the conjugate connector 3, in especially the chamfer 27 of it.
Afin de maintenir l'ensemble de connexion 1 contre le connecteurIn order to keep the connection set 1 against the connector
3 et pour maintenir ainsi les forces s'exerçant sur le joint 19, l'ensemble3 and thus to maintain the forces exerted on the joint 19, the assembly
1 comprend des moyens de fixation 29, de préférence par encliquetage du boîtier 13 au connecteur conjugué 3, par exemple sous forme de bras basculants 31 présentant chacun à son extrémité libre 33 en vis-à-vis du connecteur conjugué 3 un ergot 35 destiné à s'engager dans un logement 37 conforme ménagé dans le connecteur conjugué 3. On comprend aussi qu'un appui sur l'extrémité libre 39 opposée à celle portant l'ergot 35 permet de dégager facilement ce dernier pour déconnecter l'ensemble de connexion 1.1 comprises fixing means 29, preferably snap-fitting of the housing 13 to the conjugate connector 3, for example in the form of rocking arms 31 each having at its free end 33 opposite the conjugate connector 3 a lug 35 intended to engage in a recess 37 formed in the conjugate connector 3. It is also understood that a support on the free end 39 opposite that bearing the pin 35 can easily clear it to disconnect the connection set 1.
En variante non représentée, les moyens de fixation 29 comprennent des moyens de fixation à vis.In variant not shown, the fastening means 29 comprise screw fastening means.
Sur les figures 2 et 3 est représenté un autre mode de réalisation de l'ensemble de connexion électrique 1. Sur ces figures, les mêmes éléments que ceux de la figure 1 portent les mêmes numéros de référence.In Figures 2 and 3 is shown another embodiment of the electrical connection assembly 1. In these figures, the same elements as those of Figure 1 have the same reference numbers.
Ce mode de réalisation se distingue de celui de la figure 1 en particulier par la forme du joint d'étanchéité 19 qui présente une forme générale cylindrique avec une fente centrale 21 pour le passage de la nappe 5.This embodiment is distinguished from that of FIG. 1 in particular by the shape of the seal 19 which has a generally cylindrical shape with a central slot 21 for the passage of the sheet 5.
De plus, le boîtier 13 comporte du côté du joint d'étanchéité 19 des chanfreins 41 du part et d'autre de la nappe 5 destinés à être en contact avec le joint d'étanchéité 19 à l'état assemblé (voir figure 3) pour comprimer celui-ci lors de l'engagement de cet ensemble 1 dans le connecteur conjugué associé 3. On comprend donc que les chanfreins 41 forment une sorte d'entonnoir recevant le joint 19.In addition, the housing 13 has on the side of the seal 19 chamfers 41 on either side of the web 5 intended to be in contact with the seal 19 in the assembled state (see Figure 3). to compress it during the engagement of this assembly 1 in the associated conjugate connector 3. It is therefore understood that the chamfers 41 form a kind of funnel receiving the seal 19.
Facultativement et comme représenté sur les figures 2 et 3, on peut également prévoir des chanfreins conjugués 43 au niveau du connecteur conjugué associé 3. Par ailleurs, les moyens de fixation 29 de l'ensemble 1 au connecteur conjugués sont également, comme ceux de la figure 1, des moyens de fixation par encliquetage.Optionally and as shown in FIGS. 2 and 3, it is also possible to provide conjugate chamfers 43 at the associated conjugate connector 3. Furthermore, the fastening means 29 of the assembly 1 to the conjugate connector are also, like those of FIG. Figure 1, snap fastening means.
Toutefois, à la différence de la figure 1, il ne s'agit pas de moyens latéraux d'encliquetage, mais de moyens transversaux d'encliquetage. En effet, vue sur les figures 2 et 3, la partie supérieure 45 et la partie inférieure 47 du boîtier 43 du connecteur conjugué 3 sont prolongées pour se terminer avec des nervures respectives 49 et 51 qui se logent à l'état assemblé dans des rainures complémentaires 53 et 55 ménagées dans le boîtier 13.However, unlike FIG. 1, it is not a question of lateral locking means, but of transverse locking means. Indeed, seen in Figures 2 and 3, the upper portion 45 and the lower portion 47 of the housing 43 of the conjugate connector 3 are extended to terminate with respective ribs 49 and 51 which are housed in the assembled state in grooves complementary 53 and 55 formed in the housing 13.
Le joint 19 des figures 2 et 3 est réalisé avec la même matière, de préférence de la silicone, que le joint de la figure 1.The seal 19 of Figures 2 and 3 is made of the same material, preferably silicone, as the seal of Figure 1.
Principalement, le fonctionnement du joint lors de l'assemblage et les effets de compression sont également les mêmes que ceux décrits en rapport à la figure 1.Mainly, the operation of the joint during assembly and the compression effects are also the same as those described in relation to Figure 1.
Toutefois, lors de l'assemblage du connecteur des figures 2 et 3, il est à noter que par l'effet des nervures 49 et 51 glissant dans un premier temps sur le boîtier 13, les parties supérieure 45 et inférieure et 47 restent légèrement écarté ce que permet un bon positionnement du joint 19 contre les chanfreins 41 et 43. Seulement au dernier moment, les nervures 49 et 51 s'engagent par encliquetage dans les rainures 53 et 55 ce qui a pour effet d'immobiliser et de comprimer le joint 19 et obtenir l'étanchéité recherchée.However, when assembling the connector of Figures 2 and 3, it should be noted that by the effect of the ribs 49 and 51 sliding in a first time on the housing 13, the upper parts 45 and lower and 47 remain slightly apart this allows a good positioning of the seal 19 against the chamfers 41 and 43. Only at the last moment, the ribs 49 and 51 engage by snapping into the grooves 53 and 55 which has the effect of immobilizing and compressing the seal 19 and obtain the desired sealing.
On comprend donc que le joint 19 permet de rendre cet ensemble de connexion électrique apte à une utilisation dans un environnement difficile, parce que par exemple poussiéreux ou humide.It is therefore understood that the seal 19 makes it possible to make this electrical connection assembly suitable for use in a difficult environment, because for example dusty or humid.
Bien entendu, de nombreuses variantes sont possibles sans sortir du cadre de la présente invention.Of course, many variants are possible without departing from the scope of the present invention.
Ainsi, par exemple, l'inclinaison des chanfreins 23 et 27 peut être inversée.Thus, for example, the inclination of the chamfers 23 and 27 can be reversed.
De plus, le connecteur 3 peut être réalisé comme l'ensemble 1 de connexion avec comme seule différence la forme du boitier externe 13, les éléments de contacts conjugués 12 et avec un joint complémentaire ayant un chanfrein 27 comme celui dessiné sur la figure 1. Ainsi, avec deux ensembles de connexion selon l'invention, on peut réaliser une connexion électrique étanche entre deux nappes, appartenant par exemple à deux unités électriques différentes.In addition, the connector 3 can be made as the connection assembly 1 with the only difference being the shape of the outer casing 13, the conjugate contact elements 12 and with a complementary seal having a chamfer 27 like that shown in FIG. Thus, with two connection assemblies according to the invention, it is possible to realize a sealed electrical connection between two layers, belonging for example to two different electrical units.
Par ailleurs, pour un assemblage plus aisé, on peut prévoir que le joint d'étanchéité est fixé à un des boîtiers des connecteurs, par exemple par pincement en complémentarité de forme ou fait partie (par exemple par une technique d'injection bi-matière) d'un de ces boîtiers. Furthermore, for easier assembly, it can be provided that the seal is attached to one of the connector housings, for example by pinching in complementary shape or is part (for example by a bi-material injection technique ) of one of these boxes.

Claims

REVENDICATIONS
1. Ensemble de connexion électrique (1) comportant : - une nappe souple (5) avec des pistes électriques parallèles (7),1. Electrical connection assembly (1) comprising: - a flexible sheet (5) with parallel electric tracks (7),
- pour chaque piste (7) un élément de contact (11) fixé mécaniquement par sertissage à la nappe (5) au niveau de la piste électrique associée (7) établissant ainsi un contact électrique entre la piste (7) et son élément de contact associé (H), et- for each track (7) a contact element (11) mechanically fixed by crimping to the web (5) at the associated electrical track (7) thus establishing an electrical contact between the track (7) and its contact element associated (H), and
- un boîtier (13) comportant des parois internes (15) définissant un passage (17) traversant pour le passage de la nappe (5), caractérisé en ce que qu'il comporte une outre un joint d'étanchéité (19) coulissant, entourant la nappe (5) qui est disposé en aval des éléments de contact (11) et en amont du boitier (13) de manière que lors de l'engagement de cet ensemble (1) dans un connecteur conjugué associé (3) présentant des éléments de contact conjugués (12), le boîtier (13) comprime le joint d'étanchéité (11) pour assurer à la fois une étanchéité par compression au niveau de la nappe (5), une étanchéité au niveau des parois internes (17) du boîtier (13) et une étanchéité avec des parois du connecteur conjugué (3).- a housing (13) having internal walls (15) defining a passage (17) therethrough for the passage of the web (5), characterized in that it comprises a further sliding seal (19), surrounding the web (5) which is disposed downstream of the contact elements (11) and upstream of the housing (13) so that when this assembly (1) is engaged in an associated conjugate connector (3) having conjugated contact elements (12), the housing (13) compresses the seal (11) to provide both a compressive seal at the web (5), a seal at the inner walls (17) housing (13) and sealing with walls of the conjugate connector (3).
2. Ensemble de connexion électrique selon la revendication 1, caractérisé en ce que le joint d'étanchéité (19) présente une forme générale rectangulaire avec une fente centrale (21) pour le passage de la nappe (5).2. Electrical connection assembly according to claim 1, characterized in that the seal (19) has a generally rectangular shape with a central slot (21) for the passage of the web (5).
3. Ensemble de connexion électrique selon l'une quelconque des revendications 1 et 2, caractérisé en ce que le joint d'étanchéité (19) présente un chanfrein (23) en direction de l'assemblage (25) de l'ensemble (1) avec le connecteur conjugué (3) destiné à coopérer avec un chanfrein conjugué (27) du connecteur (3).3. Electrical connection assembly according to any one of claims 1 and 2, characterized in that the seal (19) has a chamfer (23) towards the assembly (25) of the assembly (1) with the conjugate connector (3) intended to cooperate with a conjugate chamfer (27) of the connector (3).
4. Ensemble de connexion électrique selon la revendication 1, caractérisé en ce que le joint d'étanchéité (19) présente une forme générale cylindrique avec une fente centrale (21) pour le passage de la nappe (5).4. Electrical connection assembly according to claim 1, characterized in that the seal (19) has a generally cylindrical shape with a central slot (21) for the passage of the web (5).
5. Ensemble de connexion électrique selon la revendication 4, caractérisé en ce que le boîtier (13) comporte du côté du joint d'étanchéité (19) des chanfreins (41) de part et d'autre de la nappe (5) destinés à être en contact avec le joint d'étanchéité (19) à l'état assemblé pour comprimer celui-ci lors de l'engagement de cet ensemble (1) dans un connecteur conjugué associé (3).5. Electrical connection assembly according to claim 4, characterized in that the housing (13) comprises on the side of the seal (19) chamfers (41) on either side of the web (5) intended to being in contact with the seal (19) in the assembled state to compress it when this assembly (1) is engaged in an associated conjugate connector (3).
6. Ensemble de connexion électrique selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le joint d'étanchéité (19) est réalisé en silicone.6. Electrical connection assembly according to any one of claims 1 to 5, characterized in that the seal (19) is made of silicone.
7. Ensemble de connexion électrique selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il comprend des moyens de fixation (29) du boîtier (13) au connecteur conjugué (3).7. An electrical connection assembly according to any one of claims 1 to 4, characterized in that it comprises means (29) for fixing the housing (13) to the conjugate connector (3).
8. Ensemble de connexion électrique selon la revendication 7, caractérisé en ce que les moyens de fixation (29) du boîtier (13) au connecteur conjugué (3) sont réalisés sous forme de moyens de fixation par encliquetage.8. Electrical connection assembly according to claim 7, characterized in that the fastening means (29) of the housing (13) to the conjugate connector (3) are formed as snap-fastening means.
9. Ensemble de connexion électrique selon la revendication 7 ou 8, caractérisé en ce que les moyens de fixation (29) sont réalisés sous forme de bras basculants (31) présentant chacun à son extrémité libre (33) en vis-à-vis du connecteur conjugué (3) un ergot (35) destiné à s'engager dans un logement (37) conforme ménagé dans le connecteur conjugué (3).9. Electrical connection assembly according to claim 7 or 8, characterized in that the fixing means (29) are made under form of tilting arms (31) each having at its free end (33) opposite the conjugate connector (3) a lug (35) for engaging in a recess (37) in the conjugate connector (3).
10. Ensemble de connexion électrique selon la revendication 7, caractérisé en ce que les moyens de fixation (29) comprennent des moyens de fixation à vis. 10. Electrical connection assembly according to claim 7, characterized in that the fastening means (29) comprise screw fixing means.
EP09753886A 2008-05-29 2009-05-26 Sealed electrical connection assembly Withdrawn EP2289131A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0802946A FR2932025A1 (en) 2008-05-29 2008-05-29 Electrical connection assembly, has case for compressing ring during engagement of assembly in conjugate connector to simultaneously ensure sealing at sheet by compression, sealing at case walls, and sealing with conjugate connector walls
FR0804737A FR2932026B1 (en) 2008-05-29 2008-08-28 ELECTRICAL CONNECTION ASSEMBLY
PCT/EP2009/056392 WO2009144231A1 (en) 2008-05-29 2009-05-26 Sealed electrical connection assembly

Publications (1)

Publication Number Publication Date
EP2289131A1 true EP2289131A1 (en) 2011-03-02

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Application Number Title Priority Date Filing Date
EP09753886A Withdrawn EP2289131A1 (en) 2008-05-29 2009-05-26 Sealed electrical connection assembly

Country Status (3)

Country Link
EP (1) EP2289131A1 (en)
FR (1) FR2932026B1 (en)
WO (1) WO2009144231A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5407991B2 (en) * 2010-03-30 2014-02-05 株式会社豊田自動織機 Electric compressor
US11909141B2 (en) * 2022-04-20 2024-02-20 Te Connectivity Solutions Gmbh Sealed connector for flat flexible cables

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Publication number Priority date Publication date Assignee Title
US3038140A (en) * 1960-11-16 1962-06-05 Hughes Aircraft Co Electrical connector
DE20319011U1 (en) * 2003-12-05 2005-04-21 Molex Incorporated, Lisle Flat conductor connector for sealed applications
DE102005040941A1 (en) * 2004-10-16 2006-04-27 Hirschmann Automotive Gmbh Flexible Flat Cable (FFC), FPC and other flat cables with and without round conductors
WO2006077092A1 (en) * 2005-01-19 2006-07-27 Fci Electric connector for a flat cable provided with improved sealing means
US7462035B2 (en) * 2005-07-27 2008-12-09 Physical Optics Corporation Electrical connector configured as a fastening element
GB0625527D0 (en) * 2006-12-22 2007-01-31 Delphi Tech Inc Seal for flat electrical conductor

Non-Patent Citations (1)

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Title
See references of WO2009144231A1 *

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Publication number Publication date
FR2932026A1 (en) 2009-12-04
WO2009144231A1 (en) 2009-12-03
FR2932026B1 (en) 2012-12-14

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